To do this
Use this shortcut on a PC with Windows
Use this shortcut on the Macintosh
Insert a horizontal rule.
Drag the Insert
Horizontal Rule button 
from the Basic toolbar to the position where
you want to insert the rule.
Drag the Insert
Horizontal Rule button from the Basic toolbar to the position where
you want to insert the rule.
Insert a table.
Drag the Insert
Table button 
from the Basic toolbar to the position where
you want to insert the table.
Drag the Insert
Table button from the Basic toolbar to the position where
you want to insert the table.
Move a window without bringing it to the front.
Not available.
-click on the window's title bar and then drag it.
Open an object editor for a form element.
Right-click the form element (such as a check box or radio button) and choose Form Object Editor from the context menu.
Control-click the form element (such as a check box or radio button) and choose Form Object Editor from the context menu.
Open the Frame Object Editor.
Right-click the frame and choose Show Object Editor from the context menu.
Control-click the frame and choose Show Object Editor from the context menu.
Switch to Edit HTML Source mode.
Press Shift-Ctrl-H.
Press Shift--H.
Switch to Edit Page mode.
Press Shift-Ctrl-E.
Press Shift--E.
Switch to Preview Page mode.
Press Shift-Ctrl-P.
Press Shift--P.
Move the insertion point to the next or previous setting in a dialog box or object editor or to the next or previous cell in a table.
Press Tab to move forward or Shift-Tab to back.
Press Tab to move forward or Shift-Tab to back.